Physics - Semiconductors
Practise 29 BITSAT previous year questions on Semiconductors, compiled from papers spanning 2009 to 2024. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty BITSAT tests.
Semiconductors has been asked in 15 of the 16 years of BITSAT papers analysed (2009–2024), with 29 questions in all. 72% of them were easy, 21% moderate and 7% tough. Most of its questions came from 2024, with 4 questions that year. In the last three years (2022–2024) it had 10 questions across 6 papers, about 1.7 per paper.
The chapter's 6 topics are not weighted equally: Diodes (10 questions, 34%), Logic gates (8 questions, 28%), and Junction Transistors (5 questions, 17%) have been asked the most. Diodes has also led over the last five years, with 5 questions. Junction Transistors has produced the most tough questions (1).
- 1A reverse biased zener diode when operated in the breakdown region works as2024 (Memory Based Paper 1)Diodes
- 2Identify the logic operation performed by the following circuit.2024 (Memory Based Paper 1)Logic gates
- 3Identify the logic gate given in the circuit :2024 (Memory Based Paper 2)Logic gates
- 4Identify the correct output signal in the given combination of gates for the given inputs and shown in the figure.2024 (Memory Based Paper 3)Logic gates
- 5The effect of increase in temperature on the number of electrons in conduction band and resistance of a semiconductor will be as:2023 (Memory Based Paper 1)Semiconductors
- 6The logic operations performed by the given digital circuit is equivalent to:2023 (Memory Based Paper 2)Logic gates
- 7For an insulator, the forbidden energy gap is2022Energy Bands in Solids
- 8In the circuit shown assume the diode to be ideal. When increases from to , the change in current is (in2022Diodes
- 9In the following circuit the equivalent resistance between and is ......2022Diodes
- 10A transistor is connected in common-emitter (CE) configuration. The collector supply is and the voltage drop across a resistor is in the col2022Junction Transistors
- 11A zener diode of voltage is used to maintain a constant voltage across a load resistance by using a series resistance . If the e.m.f. of sou2021Diodes
- 12The I - V characteristics shown in figure represents2021Semiconductors
- 13If the forward voltage in a semiconductor diode is changed from to , then the forward current changes by . The forward resistance of diode j2020Diodes
- 14In the following circuit diagram, the current through the battery is2019Diodes
- 15At a certain temperature, the number density of charge carriers in a semiconductor is n . When an electric field is applied to it, the charg2018Semiconductors
- 16In the given circuit, The current through battery is2018Diodes
- 17A common emitter amplifier has a voltage gain of 50 , an input impedance of 100 and an output impedance of 200 . The power gain of the ampli2017Junction Transistors
- 18In CE transistor amplifier, the audio signal voltage across the collector resistance of is . If the base resistance is and the current ampli2015Junction Transistors
- 19For a CE transistor amplifier, the audio signal voltage across the collector resistance of is . Suppose the current amplification factor of 2014Rectifier
- 20The combination of gates shown below yields2014Logic gates
- 21Transfer characteristics [output voltage vs input voltage for a base biased transistor in CE configuration is as shown in the figure. For us2013Junction Transistors
- 22The circuit is equivalent to2013Logic gates
- 23An oscillator is nothing but an amplifer with2012Rectifier
- 24The output of an OR gate is connected to both the inputs of a NAND gate. The combination will serve as a:2011Logic gates
- 25In a semiconductor diode, the barrier potential offers opposition to2011Diodes
- 26A transistor has a base current of and emitter current . The collector current will2010Junction Transistors
- 27A d.c. battery of volt is connected to a series combination of a resistor and an ideal diode as shown in the figure below. The potential dif2010Diodes
- 28Assuming the diodes to be of silicon with forward resistance zero, the current I in the following circuit is39. Assuming the diodes to be of2009Diodes
- 29The truth table given below correspond to the logic gate {tabular}{cc|c} & & \\ 0 & 0 & 1 \\ 1 & 0 & 0 \\ 0 & 1 & 0 \\ 1 & 1 & 0 {tabular}2009Logic gates
Frequently Asked Questions
1.How many questions are available for Semiconductors?
This chapter includes 29 questions compiled from BITSAT papers spanning 2009 to 2024.
2.Are these questions only from BITSAT, or from other exams too?
These are BITSAT questions specifically for the Semiconductors chapter. Questions from other exams like JEE Main or NTA Abhyas (JEE Main) are organised separately under their respective exam sections.
3.Is Semiconductors an important chapter for BITSAT Physics?
Semiconductors has appeared in 15 of the 16 years of BITSAT papers covered here, with 29 questions across 18 papers - about 2 per paper it appears in.
4.What is the difficulty level of Semiconductors questions in BITSAT?
Of the 29 questions analysed for this chapter, 72% are easy, 21% moderate and 7% tough. 2024 had the most, with 4 questions.
5.Which topics in Semiconductors should I focus on?
These topics have carried the most weightage in Semiconductors:
- Diodes - 10 questions (34%)
- Logic gates - 8 questions (28%)
- Junction Transistors - 5 questions (17%)
- Junction Transistors has produced the most tough questions (1).
6.Is Semiconductors's weightage in BITSAT going up or down?
Across all 18 papers analysed, Semiconductors has averaged about 1.6 questions per paper. In the last three years (2022–2024), that average has stayed about the same, at about 1.7 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.